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Geforce GTX 770 vs Radeon R9 290

Intro

The Geforce GTX 770 makes use of a 28 nm design. nVidia has set the core speed at 1046 MHz. The GDDR5 RAM works at a frequency of 1753 MHz on this particular model. It features 1536 SPUs along with 128 Texture Address Units and 32 ROPs.

Compare that to the Radeon R9 290, which has GPU clock speed of 800 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 512-bit bus. It also features 2560 Stream Processors, 160 Texture Address Units, and 64 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 770 230 Watts
Radeon R9 290 300 Watts
Difference: 70 Watts (30%)

Memory Bandwidth

In theory, the Radeon R9 290 should be a lot faster than the Geforce GTX 770 in general. (explain)

Radeon R9 290 320000 MB/sec
Geforce GTX 770 224384 MB/sec
Difference: 95616 (43%)

Texel Rate

The Geforce GTX 770 is just a bit (more or less 5%) more effective at texture filtering than the Radeon R9 290. (explain)

Geforce GTX 770 133888 Mtexels/sec
Radeon R9 290 128000 Mtexels/sec
Difference: 5888 (5%)

Pixel Rate

The Radeon R9 290 should be a lot (about 53%) more effective at FSAA than the Geforce GTX 770, and should be capable of handling higher resolutions while still performing well. (explain)

Radeon R9 290 51200 Mpixels/sec
Geforce GTX 770 33472 Mpixels/sec
Difference: 17728 (53%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Geforce GTX 770

Amazon.com

Radeon R9 290

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Model Geforce GTX 770 Radeon R9 290
Manufacturer nVidia AMD
Year May 2013 November 2013
Code Name GK104 Hawaii PRO
Fab Process 28 nm 28 nm
Bus PCIe 3.0 x16 PCIe 3.0 x16
Memory 2048 MB 4096 MB
Core Speed 1046 MHz 800 MHz
Shader Speed 1046 MHz (N/A) MHz
Memory Speed 1753 MHz (7012 MHz effective) 1250 MHz (5000 MHz effective)
Unified Shaders 1536 2560
Texture Mapping Units 128 160
Render Output Units 32 64
Bus Type GDDR5 GDDR5
Bus Width 256-bit 512-bit
DirectX Version DirectX 11.0 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3
Power (Max TDP) 230 watts 300 watts
Shader Model 5.0 5.0
Bandwidth 224384 MB/sec 320000 MB/sec
Texel Rate 133888 Mtexels/sec 128000 Mtexels/sec
Pixel Rate 33472 Mpixels/sec 51200 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Comments

2 Responses to “Geforce GTX 770 vs Radeon R9 290”
DODO says:
pour avoir les deux elles sont équivalente sauf qu'une est a 1180 X 1700 mgz et l'autre a 947 X 1250 ce qui est énorme comme capacités d'oc pour la 290 !!

donc oui si oc la 290 est bien plus puissante ,mais origine elles ont presque de la même puissance pour les jeux !

aisfj says:
pour avoir les deux elles sont équivalente sauf qu'une est a 1180 X 1700 mgz et l'autre a 947 X 1250 ce qui est énorme comme capacités d'oc pour la 290 !!

donc oui si oc la 290 est bien plus puissante ,mais origine elles ont presque de la même puissance pour les jeux !

Da fuq?!

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